I put the ini file you made directly into my 685 directory thus..... G:\Program Files\Lockheed Martin\Prepar3D v5\SimObjects\Airplanes\AC685P3D
Had to Google to get some idea for placement. You didn't specify where it should go....you just uploaded the ini file with no further info (readme) on
where to place it.
I did install the FS Lab lights program (which I did not know was a prerequisite) - Left a lot of guesswork with what to do with the ini file.
This is the ini file from within my 685 directory:
https://www.mediafire.com/file/fupx3d8lzjklw1t/FSLSpotLights.ini/file
BTW, Before you mentioned it, I did look at your picture and noticed a stark difference (landing lights) from my picture. Why mine doesn't look like yours,
I have no earthly idea......
The pitch and heading of your lights has no bearing on the glare from the fuselage issues I've addressed.
I experimented with the pitch and heading of your ini within the fslabs program. With the ini light on or off either way.....you can still see the glare off the fuselage and
euroastar has noted that is was a P3D thing......(I think)